Roman London - the London wall
These pages are based on a "Royal Commission On Historical Monuments 1834" - actually it is 1928; which is in the public domain.
(48) . Lower Thames Street (B) . Under the roadway immediately South of the Coal
Exchange a wall about 7 feet thick, which may have been part of the city wall,
was encountered in 1859. It was built of rag-stone but no other details of its
construction are recorded.
Coal Exchange, Lower Thames street